xaml-sdk/PdfViewer/PdfViewerCustomSaveCommand/MainWindow.xaml

<Window x:Class="PdfViewerCustomSaveCommand.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="600" Width="1000"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        xmlns:converters="clr-namespace:Telerik.Windows.Documents.Converters;assembly=Telerik.Windows.Controls.FixedDocumentViewers"
        x:Name="_this">

    <Window.Resources>
        <telerik:IconSources x:Key="IconPaths" LightBasePath="/Telerik.Windows.Controls.FixedDocumentViewers;component/Images/Modern/"
                                               DarkBasePath="/Telerik.Windows.Controls.FixedDocumentViewers;component/Images/"
                                               ModernBasePath="/Telerik.Windows.Controls.FixedDocumentViewers;component/Images/Modern/" />

        <converters:FixedDocumentViewerModeConverter x:Key="ModeConverter" />
        <converters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter" />
        <telerik:InvertedBooleanConverter x:Key="InvertedBooleanConverter"/>
    </Window.Resources>

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>

        <telerik:RadToolBar DataContext="{Binding ElementName=pdfViewer, Path=CommandDescriptors}">

            <telerik:RadButton Padding="4" DataContext="{Binding ElementName=_this, Path=Commands}"  Command="{Binding OpenCommand}">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Open" />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=open.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadButton>

            <telerik:RadButton Padding="4" DataContext="{Binding ElementName=_this, Path=Commands}" Command="{Binding SaveCommand}">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Save" />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=save.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadButton>

            <telerik:RadButton Command="{Binding PrintCommandDescriptor.Command}" Visibility="{Binding PrintCommandDescriptor.IsEnabled, Converter={StaticResource BoolToVisibilityConverter}}" HorizontalAlignment="Left" VerticalAlignment="Stretch" Margin="2" Padding="0" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" IsBackgroundVisible="False">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Print" />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=printer.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadButton>

            <telerik:RadToolBarSeparator/>

            <telerik:RadButton x:Name="counterClockwiseButton" 
                                    Command="{Binding RotateCounterClockwiseCommandDescriptor.Command}"                                    
                                    Margin="2" Padding="0" IsBackgroundVisible="False" HorizontalAlignment="Left" VerticalAlignment="Stretch">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Rotate counterclockwise" />
                </ToolTipService.ToolTip>
                <Image Source="pack://application:,,,/Telerik.Windows.Controls.FixedDocumentViewers;component/Images/Modern/rotate-counterclockwise.png" Stretch="None" />
            </telerik:RadButton>

            <telerik:RadButton x:Name="clockwiseButton" 
                                    Command="{Binding RotateClockwiseCommandDescriptor.Command}"                                    
                                    Margin="2" Padding="0" IsBackgroundVisible="False" HorizontalAlignment="Left" VerticalAlignment="Stretch">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Rotate clockwise" />
                </ToolTipService.ToolTip>
                <Image Source="pack://application:,,,/Telerik.Windows.Controls.FixedDocumentViewers;component/Images/Modern/rotate-clockwise.png" Stretch="None" />
            </telerik:RadButton>

            <telerik:RadToolBarSeparator/>

            <telerik:RadButton Command="{Binding PageUpCommandDescriptor.Command}" Visibility="{Binding PageUpCommandDescriptor.IsEnabled, Converter={StaticResource BoolToVisibilityConverter}}"  HorizontalAlignment="Left" VerticalAlignment="Stretch" Margin="2" Padding="0" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" IsBackgroundVisible="False">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Previous page" />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=previous.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadButton>

            <telerik:RadButton Command="{Binding PageDownCommandDescriptor.Command}" Visibility="{Binding PageDownCommandDescriptor.IsEnabled, Converter={StaticResource BoolToVisibilityConverter}}" HorizontalAlignment="Left" VerticalAlignment="Stretch" Margin="2" Padding="0" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" IsBackgroundVisible="False">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Next page" />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=next.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadButton>

            <TextBox Width="45" Margin="2" Text="{Binding FixedDocumentViewer.CurrentPageNumber, Mode=TwoWay}" HorizontalContentAlignment="Center" x:Name="tbCurrentPage" KeyDown="tbCurrentPage_KeyDown"/>
            <TextBlock VerticalAlignment="Center" Margin="2" Text="/" />
            <TextBlock VerticalAlignment="Center" Margin="2" Text="{Binding FixedDocumentViewer.PagesCount}" />
            <telerik:RadToolBarSeparator/>

            <telerik:RadButton Command="{Binding ZoomInCommandDescriptor.Command}" Visibility="{Binding ZoomInCommandDescriptor.IsEnabled, Converter={StaticResource BoolToVisibilityConverter}}" HorizontalAlignment="Left" VerticalAlignment="Stretch" Margin="2" Padding="0" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" IsBackgroundVisible="False">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Zoom in" />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=zoom-in.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadButton>

            <telerik:RadButton x:Name="PART_btnZoomOut" Command="{Binding ZoomOutCommandDescriptor.Command}" Visibility="{Binding ZoomOutCommandDescriptor.IsEnabled, Converter={StaticResource BoolToVisibilityConverter}}" HorizontalAlignment="Left" VerticalAlignment="Stretch" Margin="2" Padding="0" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" IsBackgroundVisible="False">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Zoom out" />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=zoom-out.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadButton>

            <telerik:RadToolBarSeparator />
            <telerik:RadToggleButton x:Name="fitToWidthButton"
                                     Command="{Binding FitToWidthFixedDocumentPagesPresenterCommandDescriptor.Command}" 
                                     IsEnabled="{Binding FitToWidthFixedDocumentPagesPresenterCommandDescriptor.IsEnabled, Converter={StaticResource InvertedBooleanConverter}, Mode=TwoWay}" 
                                     IsChecked="{Binding FitToWidthFixedDocumentPagesPresenterCommandDescriptor.IsEnabled, Mode=TwoWay}"
                                     Margin="2" Padding="0" IsBackgroundVisible="False" HorizontalAlignment="Left" VerticalAlignment="Stretch">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Fit to window width and enable scrolling." />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=document-fit-width.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadToggleButton>

            <telerik:RadToggleButton x:Name="fitToPageButton" 
                                    Command="{Binding FitToPageFixedDocumentSinglePageViewPresenterCommandDescriptor.Command}" 
                                    IsEnabled="{Binding FitToPageFixedDocumentSinglePageViewPresenterCommandDescriptor.IsEnabled, Converter={StaticResource InvertedBooleanConverter}, Mode=TwoWay}"
                                    IsChecked="{Binding FitToPageFixedDocumentSinglePageViewPresenterCommandDescriptor.IsEnabled, Mode=TwoWay}"
                                    Margin="2" Padding="0" IsBackgroundVisible="False" HorizontalAlignment="Left" VerticalAlignment="Stretch">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Fit one full page to window." />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=document-fit-page.png, IconSources={StaticResource IconPaths}}" Stretch="None" />

            </telerik:RadToggleButton>
            <telerik:RadToolBarSeparator />

            <telerik:RadToggleButton IsChecked="{Binding FixedDocumentViewer.Mode, Mode=TwoWay, Converter={StaticResource ModeConverter}, ConverterParameter=Pan}" Margin="2" Padding="0" IsBackgroundVisible="False" HorizontalAlignment="Left" VerticalAlignment="Stretch">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Pan" />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=hand-free.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadToggleButton>

            <telerik:RadToggleButton IsChecked="{Binding FixedDocumentViewer.Mode, Mode=TwoWay, Converter={StaticResource ModeConverter}, ConverterParameter=TextSelection}" Margin="2" Padding="0" IsBackgroundVisible="False" HorizontalAlignment="Left" VerticalAlignment="Stretch">
                <ToolTipService.ToolTip>
                    <TextBlock Text="Text Selection" />
                </ToolTipService.ToolTip>
                <Image Source="{telerik:IconResource IconRelativePath=text-selection.png, IconSources={StaticResource IconPaths}}" Stretch="None" />
            </telerik:RadToggleButton>
        </telerik:RadToolBar>

        <telerik:RadPdfViewer Grid.Row="1" x:Name="pdfViewer" />
    </Grid>
</Window>